The hottest Algorithm Substack posts right now

And their main takeaways
Category
Top Technology Topics

[Solution]Problem 49:Min Stack[Google]

Technology Made Simple • 19 implied HN points • 27 Jul 22
🕹 Technology Algorithm Coding Interview Subscription
  1. Designing a stack that supports push, pop, top, and retrieving the minimum element in constant time is a common problem in coding interviews and competitive programming.
  2. Implementing a solution for the Min Stack problem requires tracking the minimum element seen up to each layer of the stack using two stacks for efficiency.
  3. Building a base solution for the Min Stack problem by initializing two stacks, and optimizing the solution by removing redundancies can distinguish a good solution from a great one in interviews.

This Emptiness is Normal

Cybernetic Forests • 39 implied HN points • 14 Mar 21
🕹 Technology Cybernetics Philosophy Art Algorithm Computer Science
  1. Contemporary computing culture stems from a simple idea of punch cards, leading to a series of binary choices that automate decisions.
  2. Yuk Hui suggests viewing organisms as behaviors of their components and interactions, blurring the lines between organic and built systems.
  3. Hui encourages a shift from mechanistic thinking to understanding machines based on their behaviors, interactions, and integration into human lives.
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Twitter Algorithm Review - Part 1 - my criteria and Real Graph

PashaNomics • 2 implied HN points • 02 Apr 23
🕹 Technology Social media Algorithm Transparency Engineering
  1. Good social media algorithms should focus on improving user experience and positive user engagement, rather than just efficiency.
  2. Transparency in algorithm criteria and decision-making is crucial for understanding how the algorithm functions and analyzing its impact.
  3. Algorithm improvements should aim to fulfill user expectations, promote positive behavior, and avoid incentivizing negative interactions, such as hate engagements.

The Covid-19 Grading Mess

Joshua Gans' Newsletter • 19 implied HN points • 24 Aug 20
🚌 Education Assessment Algorithm Covid-19 Impact
  1. During the Covid-19 pandemic, the challenges of grading students became pronounced, resulting in significant issues with assessment and grading strategies in educational institutions.
  2. The UK's Ofqual algorithm for adjusting predicted grades and translating them to final grades during the pandemic resulted in unfair outcomes, with significant disparities in grading and allocation of University places.
  3. Utilizing algorithms for student grading during crisis situations should incorporate considerations for bias and adjust predicted grades accordingly, to avoid harmful outcomes and ensure fair assessment.

Twitter Algorithm Review Parts 2,3,4. Out of Network Tweets, Heavy Ranker and some Recommendations

PashaNomics • 1 implied HN point • 03 Apr 23
🕹 Technology Social media Algorithm Recommendations Transparency Machine Learning
  1. Twitter's algorithm includes features like Out-Of-Network tweets, Heavy Ranker, and Post-Ranker changes.
  2. There are concerns about the impact of algorithmic features on user well-being and engagement.
  3. Recommendations to Twitter include promoting transparency, adjusting algorithm features, and considering the overall user experience.

Turns out the internet is real life after all

Links I Would Gchat You If We Were Friends • 0 implied HN points • 04 Mar 22
🕹 Technology Social media Internet culture Algorithm Digital Content E-commerce
  1. TikTok's recommendation algorithm and user engagement lead to content that is titillating and participatory, influencing the way users consume information.
  2. The increase in social media users has led to a higher volume of content being created and shared, impacting how information and narratives spread, especially in times of conflict.
  3. The perception of social media has shifted significantly over the years, with mainstream media now acknowledging the importance of the social media narrative in shaping public opinion and influencing beliefs.

Pretty weird, damn!

Links I Would Gchat You If We Were Friends • 0 implied HN points • 02 Feb 16
🕹 Technology Online Dating Algorithm Internet Art Social media
  1. Beware of fake profiles in online dating sites, the use of fake bots is widespread and many people have fallen victim to them.
  2. Wikipedia can be a predictor of the presidential race and wikipedians have a significant influence on public opinion.
  3. Algorithms are both simpler and more complex than they seem, reading up on them could be beneficial.

Two-tower models for ranking problems

Simplicity is SOTA • 0 implied HN points • 22 May 23
🕹 Technology Big Data Machine Learning Research Neural Networks Algorithm
  1. Two-tower models are a technique being used in academia to improve ranking systems by looking into how position and user behavior affects clicks.
  2. Critiques have been raised against the two-tower models, questioning if they effectively separate biases and relevance in ranking.
  3. A new method called GradRev is emerging as a potential improvement over the previous two-tower models, applying a different approach to address bias in learning-to-rank systems.

[Solution]Problem 17: Minimum cost of painting N houses up to K different colors.[Facebook]

Technology Made Simple • 0 implied HN points • 23 Dec 21
🕹 Technology Coding Algorithm Dynamic Programming Optimization Complexity
  1. The problem involves minimizing cost while ensuring no neighboring houses have the same color. This can be represented using a matrix.
  2. Brute force can be initially used to explore all combinations, but dynamic programming is a more efficient approach in this scenario. Dynamic programming optimizes calculations by avoiding unnecessary computations.
  3. By utilizing dynamic programming, we can efficiently calculate the minimum cost of painting the houses with different colors. This method involves maintaining a matrix cache to track the costs and ensure the color constraint is met.